goffin



UNITED SATES PATENT OFFICE.

F. C. GOFFIN, OF NEW YORK, N. Y., ASSIGNOR TO ALFRED B. ELY.

POWDER-CHANNEL TO DOORS OF SAFES AND BANK-VAULTS.

Specification of Letters Patent No. 11,190, dated June 27, 1854.

To all whom t may concern Be it known that I, F- C. GorFIN, of New York,in the State of New York, have invented a new and useful Powder Channelto be Attached to the Doors of Safes, Bank- Vaults, &c.; and I declarethat the following is a full and exact description thereof, referencebeing had to the accompanying drawings and the letters of referencethereon.

My invention is intended to be applied to the doors of safes, vaults,85o., directly underneath the locks of said doors, and to be used when ahole has been left in the bottom plates of said locks or when the saidbottom plates have been left off, and Jthe nature of said inventionconsists in providing an inclosed chamber or channel which may receiveand carry off any powder that may have been passed into a lock eitherthrough the key hole or any other aperture made for the purpose.

Holes have been made in the bottoms of locks for the purpose of allowingany powder, that may be introduced, to fall out, and, where the door isof a single thickness, and the powder can fall upon the ioor nothingmore may be necessary. But where the lock is placed in a double doorlike that of the common fire proof safe my powder channel becomes ofgreat convenience and utility.

In the accompany drawings Figure 1 is a front view of a safe door. Fig.2 is a back view of the front plate of the doorwith the lock and powderchanned attached, and Fig. 3 is a sectional view of the door with thelock and powderr channel.

The same letters refer to the same parts.

A, A, is the front plate of the door. The

key hole is represented by black lines in Fig. l, and by dotted lines inFigs. 2 and 3.

B is the lock and C the powder channel. The lock and powder channelarerepresented by dotted lines in Fig. 1, or rather the position thereof.

The lock has a hole in its bottom plate at z or the bottom plate isdispensed with altogether. The powder channel is triangular in form,inclosed on the back and sides and open at the top where it meets thelock and at the bottom where it reaches the bottom of the door. Itextends from the lock to the bottom of the door, and a hole is left inthe bottom plate of the door at b.

The size of the powder channel will depend upon the size and form of thelock, and door. It should be considerably larger than to hold any suchamount of powder as would be ordinarily put into a lock for the purposeof blowing it up. It may be made of any metal and may be fastened to thedoor, or retained in its place by the filling of the safe, packed aroundit. It may have' a front plate so as of itself to form a triangular tubeopen at top and bottom, or the sides may be brought snugly up t-o thefront plate. of the doorwwhich in that case will form the front plate ofthe powder channel also. The obj ect of the hole at b is to allow anypowder that may have fallen down into the channel to fall out, or betaken out, from thence when the door is opened, the hole running throughthe bottom plate of the door.

I-Iaving thus described my invention, what I claim is.

The construction of channels or hollow chambers in connection with thedoors of safes, valut-s &c. the `same being open at top and bottom andreaching from the lock to the bottom of the door, substantially in themanner and for the purposes Set forth.

F. C. GOFFIN.

" itnessesz L. PITKIN, W. ELY.

